Rotary engine.



W. A. KELSO. ROTARY ENGINE.

APPLIOATION FILED FEB. 12, 1906.

2 SHEETS-SHEET 1.

1H: mmm: PETERS ca., wAzsHmcmM-n. c.

N0. 838,029. PATENTED DC. l1, 1906,

W. A. KELSO.l

ROTARY ENGINE.

APPLIUATION FILED 2213.12, 1940s.

i 2 SHEETS-SHEET 2. F/y. 3.

za -rrl 19 i 9 Wilde/10,4 .ITE/60,

@LW/tucasa@ 7 TH: Naxms Farias co., WASHINGTON. u. c.

UNITED STATES PATENT OFFICE.

VILLIAM A. KELSO, .OF PHILIPSBURG, NEW JERSEY, ASSIGNOR OF ONE- HALF TO FRANK A. HILBURN AND ONE-SIXTH TO ARTHUR RICHARDS,

OF EASTON, PENNSYLVANIA.

ROTARY ENGINE.

Specification of Letters Patent.

i Patented Dee. 11, 190e.

Application filed February 12, 1906, Serial No. 300,766.

To all whom, it may concern.-

Be it known that I, WILLIAM A. KELso, a citizen of the United States, residing at Philipsburg, in the county of Warren and State of New Jersey, have invented a new and useful Rotary Engine, of which the following is a in their nature and are not liable to derangen ment. In this last connection one of the objects is to provide a valve-operating mechanism that is comparatively simple in its make-up and is actuated by a single operating device to control the movements of the motor.

Another object is to provide a structure wherein the working parts are completely inclosed, whereby the motor is peculiarly adapted for use under water.

In the drawings, Figure 1 is a vertical sectional view through the preferred embodiment of the invention, said invention, however, being not limited to suoli embodiment. Fig. 2 is a horizontal sectional view through the same. Fig. 3 is a sectional view taken at right angles to Fig. 2. Fig. 4 is a vertical sectional view substantially on the line 4 4 of Fig. 2. Fig. 5 is a detail sectional view through the valve mechanism. Fig. 6 is a sectional view on the line 6 6 of Fig. 2.

Similar reference-numerals designate corresponding parts in all .the figures of lthe drawings.

In the embodiment illustrated an outer casing is employed, which comprises an annular wall 7 and heads 8, one ofsaid heads being preferably integral with the annular wall, theother being detachably secured thereto. The annular wall 7 is substantially elliptical in cross-section, as will be vided, having outer trunnions 10, journaled Angularly-disposed cylinders 9 are pro-f eccentrcally in the heads of the casing, said trunnions being mounted in take-up collars 11, threaded into said heads. preferably has an integral head at one end and a detachable head secured to its opposite end.

It will be observed by reference to Fig. 1

that the axis of rotation of the cylinders is located in the plane of the minor axis of the casing. The cylinders 9 are also provided on Each cylinder their inner sides with trunnions, one of said trunnions 12 being larger than the other and having a socket 13 in which said other, (designated 14,) is detachably fitted. Extendingy across the socket 13 is a holding device in the form of a pin 15, said pin being received in a l y seat 1 6, formed in the trunnion 14.

yond the opposite ends thereof. These piston-rods are provided with terminal yokes 19, in which are journaled rollers 20, that operate against the inner face of the said sube.

upon the interlocked trunnions 12 and 14,

Recipro-V catory pistons 17 are mounted in the cylin-. ders and have piston-rods 18 projecting be.

said trunnions rotating in said valve-disk. -l

This disk has curved chambers 22 opening` through the opposite sides of the same and having their ends spaced from each other.v

Ports 23, formed in the walls of the cylindersv n 9 and contiguous to the ends thereof, communicate alternately with the chambers upon the rotation of the pistons. Said chambers are also provided with end ports 24, that open through the opposite peripheral pon tions of the valve, as shown in Fig. 5. The valve is surrounded by a sectional casingring 25, and threaded into the diametrically opposite portions of the ring are supply and exhaust conduits 26 and 27, said conduits, extending through the peripheral wall 7 of.

the casing. lt will be seen by reference to Fig. 5 that by this arrangement of the parts the valve-disk may be turned so that one of the chambers will be in communication with the supply-conduit 26, while the other will communicate with the exhaust 27, or said other may be placed inv communication with` the supply, in which case the first-mentioned will be connected with the exhaust.

Furthery,

ICO

more, the valve may be turned so that both the supply and the exhaust are out of cornmunication with the chambers. For the purpose` of turning the valve an operating-sleeve 28 is journaled on the supply-pipe 26, said sleeve extending through the casing and having at its outer end a knurled or roughened portion 29. Its inner end has a series of teeth 30, that mesh with a rack 31, carried by the valve, as shown in Figs. 4 and 6. The sleeve 2S is maintained in place by the supply pipe or conduit 26, which conduit has at its outer end anv annular flange 32, engaging against ani internal annular shoulder 33 of` the sleeve 28. It will thus be apparent that when ,the pipe 26vis` screwed into the casing 25v the sleeve will be held against longitudinal displacement, while its rotation is permitted.

Motive fluidi in the form of compressed air, steam, or the like is supplied from any suitable source tothe pipe or conduit 26. It will beapparent that if the sleeve28 is turned so that the ports 24 of the valve-are out of alinement with the supply pipe or conduit 26m0- tive fiuidl will be cut oil" from both cylinders. If, however, the'valve is turned so that one of the ports 24 is brought into communicationwith the supply-pipe, the other port will.

communicate with the exhaust. Motive fluid therefore will enter oneoi the chambers, and as the portsoi` the cylinders successively communicate with opposite sides of the said chamber said motive fluid will successively enter the cylinders and drive the pistons alternately in opposite directions. The ports 23 ofthe cylinders alternately communicate withv both chambers of the valve, thereby alternately receiving supplies and exhausting. To reverse the engine, it is only necessary to turn the valve so that the chamber. first `in communication with the exhaust is brought into communication, with the supply, whereupon the former chamber, through which the supply of motive-fluid is passed, will communicate with the exhaust.

From the'above and from the drawings it will be` apparent that the structure is very simple and exceedingly compact. The parts also-are of a nature that are not liable to derangement and arey capable of very high speed. rIhe annular wall 7 constitutes a track or guide for the bearing-rollers and because of itspeculiar shape and the disposition of the axis of rotation of the revolving part there is no lost motion and the highest degree of efficiency is secured. Il`urthermore, in this particular embodiment the movable parts are entirely inclosed in a tight casing, thus making the motor peculiarly applicable for use under waterl or in places where the movable parts might be deleteriously aflected by outside influences. In practice oil can be placed directly within the casing, so that the parts will be efficiently lubricated. The valve structure, as will be apparent, is very simple, a single valve being provided for both cylinders to control the starting, stopping, and reversing of the motor. Moreover, all these controlling operations are effected by the action of one device-namely, the sleeve 2S. The wear between the rotating cylinders and the interposed valve can be readily taken up without dismembering the parts by merely screwing in the take-up collars 1 1, and thus steam-tight joints can be easily maintained.

From the foregoing it is thought that the construction, operation, and many advantages of the herein-described invention will be apparent to those skilled in the art without further description, andy it will be understoodv that various changes in the size, shape, proportion, and minor details of construction may be resorted to without departing from the spirit or sacrificing any of the advantages of the invention.

I-Iavingy thus fully described my invention, what I claim as new, and desire to'secure by Letters Patent, is-

1. In a rotary motor, the combinationwith an annular track or guide, of journal-bearings adjustable toward and from each other,

separable angularly-disposed rotatable cyl-- indersjournaled in the bearings and1 located between them, said cylinders being held. together by the bearings, and' pistons operatingin the cylinders and having bearing devices-that operate against the track or guide..

2. In a rotary motor, the combination with a casing having an annular substantially elliptical wall and end walls, of journal-bearings threaded. into the end. walls and` adjustable toward and from each other, separable angularly-disposed rotatable cylinders located within the casing and journaled in the bearings, said cylinders being held together by the bearings, and reciprocatory pistons operating in the cylinders and having bearing devices projecting from the opposite ends of the cylinders and operating against said ellipticalwall.

3. In a rotary motor, the combination with angularly-disposed rotatable cylinders located side by side, of reciprocatory pistons operating therein, and valve mechanism in- IOO IIO

terposed between the adjacent sides of the j i between the cylinders, reciprocatory pistons operating in the cylinders and, rotatable therewith, and valve mechanism interposed between the adjacent sides of the cylinders and mounted on the trunnion connection.

6. In a rotary motor, the combination with angularly-disposed rotatable cylinders locatedside by side, of reciprocatory pistons operating in the cylinders, valve mechanism interposed between the adjacent sides of the pistons for controlling` the supply of motive f fluid to and the exhaust of motive fluid from 'reciprocatory pistons operating inthe cylinders and carrying devices that bear against the annular wall of the casing, a trunnion connection between the cylinders, a valve device rotatably mounted on the trunnion and controlling the supply of motive fluid to and the exhaust of motive fluid from both cylinders, outstandingl trunnions carried by the cylinders, and journal-bearings therefor mounted in the end walls of the casing and movable toward each other to hold the cylinders against the valve device.

8. In a rotary motor, the combination with a casing having an annular wallfof angularl ydisposed cylinders rotatablv mounted within the wall, valve mechanism located between the cylinders, supply and exhaust pipes pass-y ing through the annular wall and connected to the valve mechanism, and pistons operating in the cylinders and having devices that operate against the wall on opposite sides of the pipes. l

9. In a rotary motor, the combination with a casing having an annular wall, of angularlydisposed cylinders located side by side within the casing, and rotatable therein, a valve device located between the cylinders and controlling the supply of motive fluid to and the exhaust of motive fluid from both cylinders, oppositely-extending supply and exhaust pipes passing through the annular wall of the casing and communicating with the valve device, and pistons operating in the cylinders and having piston-rods projecting beyond opposite ends'of the same, said piston-rods having devices that bear against the inner face of the annular wall on opposite sides of the pipes.

10. In a rotary motor,`the combination with a rotary cylinder, of a reciprocatorv piston operating therein, said cylinder having supply and exhaust ports, a rotary valve having separate chambers provided with ports, said cylinder-ports moving into and out of communication with said chambers,

motive-fluid and .exhaust conduits coacting with v difierent -portions of the valve, said valve being movable with respect to the conduits to carry ports of each chamber thereof into communication with both conduits, whereby said chambers may be made to receive either supply or exhaust motive fluid.

ll. In a rotary motor, the combination with a rotary cylinder, of a reciprocatory piston operating therein, said cylinder having supply and exhaust ports, a rotary valvedisk located alongside thecylinder and having separate chambers provided with end ports, said cylinder-ports moving into and out of communication with the chambers, motive fluid supplv and exhaust conduits coacting with opposite peripheral portions of the valve, said valve being movable with respect to the conduits to carry different of its ports into communication with each conduit, wheeby said chambers may be made to constitute either supply or exhaust chambers.

12. In a rotary motor, the combination with angularly disposed rotary `cylinders having ports, of reciprocatory pistons operating in the cylinders, a valve located between the cylinders and having supply and exhaust chambers with. which the cylinderports aline, and supply and exhaust conduits communicating with said chambers.

13. In a rotary motor, the combination with angularly-dispcsed rotary cylinders having ports, of reciprocatory pistons operating in the cylinders, a valve-disk located between the cylinders and having supply and exhaust chambers opening through opposite sides of the same, the ports of the cylinders alining with the chambers during the rotation of said cylinders, and supply and exhaust conduits communicating with peripheral portions of said chambers.

14. In a rotary motor, the combination with angularly-disposed rotary cylinders having ports in their inner opposing sides, ot reciprocatory pistons operating in the cvlinders, a normally' stationary adjustable valvedisk located between the cylinders and having supply and exhaust chambers opening through opposite sides of the same, cylindcr-ports alining with the chambers during the rotation of the cylinders, said chambers also ha ving peripheral ports, supply and exhaust conduits coacting with opposite portions of the valve-disk, the chamber-ports of' said disk being movable into and out of coaction with the conduits, and means for adj, justing the valve.

movesl into and out of communication upon the movement of said' valve', and means for moving the valve'.

16'. In a rotary motor, the combination with a rotary4 cylinder, and a reciprocatory piston mounted therein, of a movable valve controlling the supply of motive luid to the cylinder, said valve having a port, a conduit with which the port moves into and out of communication upon the movement of said valve, and means surrounding the conduit andy connected to the valve for moving the same. A

17. In a rotary motor, the combination With a rotary cylinder, and a reciprocatory piston mounted therein, of a rotary valve controlling the supply of motive iluid to the cylinder, said valve havinga port and teeth, a conduit with which the valve-port moves into and out of communication upon ythe movement of saidA valve, and a sleeve journaled on the conduit and having teeth meshing with the teeth of the valve.

18. In a rotary motor, the combination With angularly-disposed cylinders, ol reciprocatory pistons operating therein, interlocked trunnions carried by the inner sides of the cylinders, and means for supplying motive fluid to the cylinders.

19. In a rotary motor, the combination with angularlyedisposed cylinders, of reciprocatory 'pistons operating therein, interlocked trunnions carried by the inner sides of the cylinders, and means for supplying motive iluid to the cylinders, said means including a valve in which the interlockedv inner trunnion ol one cylinder having a socket and a holding device therein, the inner trunnion ol` the other cylinder fitting in the socket and having a seat to receive the holding device, reciprocatory pistons operat ing in the cylinders, and means for supplying motive iluid to the cylinders.

22. In a rotary motor, the combination With angularlyedisposed cylinders, of reciprocatory pistons operating therein', outer trun'i'iions carried by the cylinders, a valve located between the cylinders and controlling'thesuppl'y of motive fluid to both, anda take-up device mounted on one of the outer trunnions andl bearing against the cylinder to urge the same toward the other and take up the Wear between saidy cylinders and the valve.

23. In a rotary motor, the combination with a casingl having heads, of take-upy collars threaded into' said' heads, angularlydisposed cylindersv having outer trunnions journaled in collars, reciprocatory pistons operating in the cylinders, inner interlocked trunnions carried by the cylinders,l a valve mounted onl the interlocked'v trunnions and controlling the supply of motivefluid to both of said cylinders, and* means for conducting a supply of motive Huid to, andthe exhaust from said' valve.

24. In a rotary motor, the combination With a casing comprising a substantially ellipticalI Wall, andl heads, of take-up collars threaded eccentrically into the heads, angularly-disposed cylinders having interlocked inner trunnions, and outer trunnions journaled in the take-upl collars, saidA cylinders'- having ports through their inner sides, a

rotary valve-disk xmounted on the inter-Y loeked inner trunnions and having chambers with Which the cylinder-ports communicate,

supply and exhaust conduits having their innner ends disposed contiguousv to'opposite portions of the valve, said valve having ports that are movable into and out oi communicationwith the conduits, reciprocat'ory pistons operating in the cylinders andhaving piston-rods projecting beyond the opposite sides of the same, and rollers journaled on the ends of the piston-rods and operating against the said elliptical Wall of the casing. In testimony that I claim the foregoing as my own I have hereto ailixed my 'signature' in the presence of tvvovvitnesses.

WVILLIAM A. KELSO. Vitnesses:

CHAs. B. BRUNNER, WILLIAM F. RINKER.

IOO 

